The heavily anticipated rematch between Britain’s Amir Khan and Lamont Peterson, scheduled for May 19, has been called off after the American tested positive for testosterone, organizers said on Wednesday.

“A fight with Oscar can happen”, these are the words of Golden Boy Productions CEO Richard Schaefer as told to Dan Rafael of ESPN.COM. “Oscar gave me clear instructions to make the fight with Pacquiao, not to kill the fight”.

It will be known within the next few days regarding Oscar de la Hoya’s choice of who will be his formidable opponent for his scheduled December 6 farewell fight of this year, Golden Boy Productions CEO Richard Schaefer has told the LA times.